I am not sure if this is a coding or a plug in thing. I have a code that is right now allowing me to view a text box but I would like for it to mirror everything that people put in their personal notepad

this is what i have right now. and this is what it looks like currently

and I am okay with the look but i need it to work so that when people input text into their personal notepad it will show up in this text box so they can copy and paste it. any help is needed and much appreciated!